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Finding the Fourth Proportional to 477,489, 658,947.29 and 262,634.70

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Solution

The fourth proportional to 477,489, 658,947.29 and 262,634.70 is: 362,442.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,489 : 658,947.29 = 262,634.70 : x
  2. Step 2: Convert to fraction form
    477,489/658,947.29 = 262,634.70/x
  3. Step 3: Cross multiply
    477,489x = 658,947.29 × 262,634.70
  4. Step 4: Simplify right side
    477,489x = 173,062,422,511.79
  5. Step 5: Solve for x
    x = 173,062,422,511.79/477,489
  6. Step 6: Final answer
    x = 362,442.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.